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https://issues.apache.org/jira/browse/QPID-1879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Stitcher resolved QPID-1879.
-----------------------------------
Resolution: Fixed
Don't use a thread for every new client Connection
- By default the max number of threads now used for network io
is the number of cpus available.
- This can be overridden with the QPID_MAX_IOTHREADS environment
variable or the config file
> The client library uses a new thread for every connection
> ---------------------------------------------------------
>
> Key: QPID-1879
> URL: https://issues.apache.org/jira/browse/QPID-1879
> Project: Qpid
> Issue Type: Bug
> Components: C++ Client
> Affects Versions: M1, M2, M2.1, M3, M4, 0.5
> Reporter: Andrew Stitcher
> Assignee: Andrew Stitcher
> Fix For: 0.6
>
>
> This is actually slightly worse than just using a new thread per broker
> connection as it also uses a new Poller for every Connection and the Poller
> is fairly hefty and includes a number of fds for its own use. This multiplies
> the client fd use for clients with many Connections.
> It's not really acceptable that opening 1000 connections should create 1000
> threads.
> It should be noted that this isn't the only aspect of the client library that
> uses excessive numbers of threads, lets knock them off one by one
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